tracing/ftrace: Make boot tracer select the sched_switch tracer
PATCH RESEND 1/1 tracing/ftrace: Make boot tracer select the sched_switch tracer
If the boot tracer is selected but not the sched_switch, there will be a build failure:
kernel/built-in.o: In function `boot_trace_init':
trace_boot.c:(.text+0x5ee38): undefined reference to sched_switch_trace' kernel/built-in.o: In function disable_boot_trace':
(.text+0x5eee1): undefined reference to tracing_stop_cmdline_record' kernel/built-in.o: In function enable_boot_trace':
(.text+0x5ef11): undefined reference to `tracing_start_cmdline_record'
This patch fixes it.
---
kernel/trace/Kconfig +1 -0
@@ -125,6 +125,7 @@ config BOOT_TRACER depends on HAVE_FTRACE depends on DEBUG_KERNEL select TRACING + select CONTEXT_SWITCH_TRACER help This tracer helps developers to optimize boot times: it records the timings of the initcalls. Its aim is to be parsed by the
Ingo Molnar
AppliedQuoted 10 lines · Frederic Weisbecker
If the boot tracer is selected but not the
sched_switch, there will be a build failure:
kernel/built-in.o: In function `boot_trace_init':
trace_boot.c:(.text+0x5ee38): undefined reference tosched_switch_trace' kernel/built-in.o: In functiondisable_boot_trace':
(.text+0x5eee1): undefined reference totracing_stop_cmdline_record' kernel/built-in.o: In functionenable_boot_trace':
(.text+0x5ef11): undefined reference to `tracing_start_cmdline_record'
Quoted 3 lines
This patch fixes it.
Signed-off-by Frederic Weisbecker <[email protected]>
applied to tip/tracing/urgent, thanks!
Ingo